################################################################################
##
## Filename:	Makefile
## {{{
## Project:	Zip CPU -- a small, lightweight, RISC CPU soft core
##
## Purpose:	To direct and simplify the build of a variety of simple test
##		programs which will use one (or both) of the ZipCPU simulators.
##
## Targets include:
##
##		helloworld
##
##
##
## Creator:	Dan Gisselquist, Ph.D.
##		Gisselquist Technology, LLC
##
################################################################################
## }}}
## Copyright (C) 2017-2024, Gisselquist Technology, LLC
## {{{
## This program is free software (firmware): you can redistribute it and/or
## modify it under the terms of  the GNU General Public License as published
## by the Free Software Foundation, either version 3 of the License, or (at
## your option) any later version.
##
## This program is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
## for more details.
##
## You should have received a copy of the GNU General Public License along
## with this program.  (It's in the $(ROOT)/doc directory.  Run make with no
## target there if the PDF file isn't present.)  If not, see
## <http://www.gnu.org/licenses/> for a copy.
## }}}
## License:	GPL, v3, as defined and found on www.gnu.org,
## {{{
##		http://www.gnu.org/licenses/gpl.html
##
################################################################################
##
## }}}
.PHONY: all
all: helloworld

CC      := zip-gcc
OBJDUMP := zip-objdump
OBJDIR := obj-zip
CFLAGS := -O3
LIBD   := ../../sw/install/cross-tools/zip/lib
LIBS   := -L$(LIBD) -lzipbasic
SOURCES:= helloworld.c
LDSCRIPT:= ../zipsim.ld

$(OBJDIR)/%.o: %.c
	$(CC) $(CFLAGS) -c $< -o $@

helloworld: $(OBJDIR)/helloworld.o
	$(CC) -T $(LDSCRIPT) $(CFLAGS) $(LIBD)/crt0.o $(LIBS) $< -o $@

helloworld.txt: helloworld
	$(OBJDUMP) -dr $< > $@

define	build-depends
	$(CC) $(CFLAGS) -MM $(SOURCES) > $(OBJDIR)/xdepends.txt
	sed -e 's/^.*.o: /$(OBJDIR)\/&/' < $(OBJDIR)/xdepends.txt > $(OBJDIR)/depends.txt
	@rm -f $(OBJDIR)/xdepends.txt
endef

tags: $(SOURCES)
	@ctags $(SOURCES)

.PHONY: depends
depends: $(OBJDIR)/
	$(build-depends)

$(OBJDIR)/:
	@bash -c "if [[ ! -e $(OBJDIR) ]]; then mkdir -p $(OBJDIR)/; fi"

.PHONY: clean
clean:
	rm -rf helloworld
